I saw my 7 month old RIR this morning and she appeared fine. She laid an egg for us yesterday but we found it smashed. We didn't think anything of it. I cleaned up the meas and put in new bedding. This afternoon I found her dead and cold inside the coop. No trauma or signs of predators and the other 4 birds are doing fine. When I opened the coop to remove the body I found a pile of yellowish goop. Can anyone tell me why this bird died so suddenly and if my flock is safe. Also we have about 6 eggs from her in the fridge, should we toss them?